PROCESS FOR REMOVING ACID GAS FROM A GAS MIXTURE CONTAINING ACID GAS

Process for removing acid gas from a gas mixture containing acid gas comprising the steps of contacting the gas mixture with a first absorbent in absorber (3) to produce treated gas and loaded first absorbent, and regenerating (20) loaded first absorbent to produce regenerated first absorbent and a...

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Bibliographische Detailangaben
Hauptverfasser:	KAIJA, STEVEN PAUL, CHOPRA, VIJAY KUMAR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	Process for removing acid gas from a gas mixture containing acid gas comprising the steps of contacting the gas mixture with a first absorbent in absorber (3) to produce treated gas and loaded first absorbent, and regenerating (20) loaded first absorbent to produce regenerated first absorbent and a gas enriched in hydrogen sulphide; contacting the treated gas in absorber (30) with auxiliary absorbent to produce purified gas and loaded auxiliary absorbent, and regenerating (50) loaded auxiliary absorbent to produce regenerated auxiliary absorbent which is supplied to the auxiliary absorber and a gas enriched in hydrogen sulphide; supplying gas enriched in hydrogen sulphide to sulphur recovery plant (55); reducing (60) the sulphur compounds other than hydrogen sulphide in the off-gas to hydrogen sulphide to produce reduced off-gas; contacting the reduced off-gas in absorber (65) with regenerated first absorbent to produce sulphur-free gas and partly loaded first absorbent; and supplying partly loaded first absorbent to the first absorber for use in absorber (3).